OSUR's three largest insider shareholders as of September 29, 2026 are Manner Carrie Eglinton (President Ceo, 2.19Mn shares), Kenneth J Mcgrath (Chief Financial Officer, 589.56K shares), Kathleen Gallagher Weber (Chief Product Officer, 391.21K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Manner Carrie Eglinton | President Ceo | 2,190,874 | 0 | 2,190,874 | 38.2% | 23 Mar, 2026 |
| 2 | Kenneth J Mcgrath | Chief Financial Officer | 589,562 | 0 | 589,562 | 10.3% | 23 Mar, 2026 |
| 3 | Kathleen Gallagher Weber | Chief Product Officer | 391,206 | 0 | 391,206 | 6.8% | 04 Mar, 2025 |
| 4 | Stephen S Phd Tang | President And Ceo | 349,793 | 0 | 349,793 | 6.1% | 03 Feb, 2022 |
| 5 | John P. Kenny | Director | 204,598 | 0 | 204,598 | 3.6% | 09 Sep, 2026 |
| 6 | Michele Marie Anthony | Svp Finance Cao | 185,788 | 0 | 185,788 | 3.2% | 19 Mar, 2026 |
| 7 | Nancy J Gagliano | Director | 185,055 | 0 | 185,055 | 3.2% | 05 Jun, 2026 |
| 8 | Mara G. Aspinall | Director | 178,758 | 0 | 178,758 | 3.1% | 15 May, 2025 |
| 9 | Steven Kyle Boyd | Director | 163,234 | 0 | 163,234 | 2.8% | 30 Jun, 2026 |
| 10 | Lelio Marmora | Director | 148,460 | 0 | 148,460 | 2.6% | 05 Jun, 2026 |
| 11 | David Shulkin | Director | 126,335 | 0 | 126,335 | 2.2% | 15 May, 2025 |
| 12 | Jack E Jerrett | Svp General Counsel Amp; Cco | 124,555 | 0 | 124,555 | 2.2% | 03 Jan, 2022 |
| 13 | Lisa Nibauer | President Of Diagnostics | 123,479 | 0 | 123,479 | 2.2% | 12 May, 2022 |
| 14 | Robert W. Mcmahon | Director | 123,137 | 0 | 123,137 | 2.1% | 05 Jun, 2026 |
| 15 | Michael Celano | Director | 111,823 | 0 | 111,823 | 1.9% | 16 Aug, 2022 |
| 16 | Ronny B Lancaster | Director | 104,782 | 0 | 104,782 | 1.8% | 29 Aug, 2022 |
| 17 | Scott Gleason | Interim Cfo/Svp Ir | 96,509 | 0 | 96,509 | 1.7% | 24 May, 2022 |
| 18 | Agnieszka Gallagher | General Counsel Amp; Cco | 90,584 | 0 | 90,584 | 1.6% | 03 Feb, 2022 |
| 19 | James A Datin | Director | 82,146 | 0 | 82,146 | 1.4% | 16 May, 2024 |
| 20 | John D. Bertrand | Director | 79,767 | 0 | 79,767 | 1.4% | 05 Jun, 2026 |
| 21 | Eamonn P Hobbs | Director | 61,452 | 0 | 61,452 | 1.1% | 18 May, 2022 |
| 22 | Anne Clem Whitaker | Director | 23,840 | 0 | 23,840 | 0.4% | 17 May, 2023 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 06 Sep, 2026 | John P. Kenny | Director | Disposed F | 5,116 | $3.43 | $17.54K | 204,598 | Direct |
| 26 Jun, 2026 | Steven Kyle Boyd | Director | Acquired A | 3,666 | $4.43 | $16.25K | 163,234 | Direct |
| 03 Jun, 2026 | John D. Bertrand | Director | Acquired A | 46,106 | $0.00 | $0 | 79,767 | Direct |
| 03 Jun, 2026 | Lelio Marmora | Director | Acquired A | 46,106 | $0.00 | $0 | 148,460 | Direct |
| 03 Jun, 2026 | Steven Kyle Boyd | Director | Acquired A | 46,106 | $0.00 | $0 | 159,568 | Direct |
| 03 Jun, 2026 | John P. Kenny | Director | Acquired A | 46,106 | $0.00 | $0 | 209,714 | Direct |
| 03 Jun, 2026 | Robert W. Mcmahon | Director | Acquired A | 46,106 | $0.00 | $0 | 123,137 | Direct |
| 03 Jun, 2026 | Nancy J Gagliano | Director | Acquired A | 46,106 | $0.00 | $0 | 185,055 | Direct |
| 13 May, 2026 | Robert W. Mcmahon | Director | Disposed F | 22,888 | $3.02 | $69.12K | 77,031 | Direct |
| 13 May, 2026 | Lelio Marmora | Director | Disposed F | 28,406 | $3.02 | $85.79K | 102,354 | Direct |
| 13 May, 2026 | Nancy J Gagliano | Director | Disposed F | 21,305 | $3.02 | $64.34K | 138,949 | Direct |
| 12 May, 2026 | John D. Bertrand | Director | Acquired A | 33,661 | $0.00 | $0 | 33,661 | Direct |
| 12 May, 2026 | Steven Kyle Boyd | Director | Acquired P | 25,000 | $2.98 | $74.50K | 63,462 | Direct |
| 13 May, 2026 | Steven Kyle Boyd | Director | Acquired P | 25,000 | $3.02 | $75.50K | 88,462 | Direct |
| 14 May, 2026 | Steven Kyle Boyd | Director | Acquired P | 25,000 | $2.99 | $74.75K | 113,462 | Direct |
| 26 Mar, 2026 | Steven Kyle Boyd | Director | Acquired A | 5,246 | $3.10 | $16.25K | 39,878 | Direct |
| 26 Mar, 2026 | Steven Kyle Boyd | Director | Disposed F | 1,416 | $3.10 | $4.39K | 38,462 | Direct |
| 20 Mar, 2026 | Kenneth J Mcgrath | Chief Financial Officer | Acquired P | 32,300 | $2.93 | $94.60K | 589,562 | Direct |
| 20 Mar, 2026 | Manner Carrie Eglinton | President Ceo | Acquired P | 32,300 | $2.93 | $94.60K | 2,190,874 | Direct |
| 01 Mar, 2026 | Michele Marie Anthony | Svp Finance Cao | Acquired A | 14,183 | $0.00 | $0 | 157,685 | Direct |